Dynamo-electri



ISAAC 'r. DYER, or CHICAGO, ILLINoIs, ASSIGNOR or F1 nert-n FISH nunous'riiv MOURATH, or sane rule I :o .In, or rxrmrn, MASSACII'USE'MS.

SPECIFICATION forming part of Letters Patent No. 396,355, rated January15, 1889. Application filed February '7, 1888. Serial No. 263,292. (150Inotleh T (oZZ whom it may cancer/r: opposite ends by arms 02 m,projecting from Be it known that I, Isaac T. DYER, a citithe sleevesnear their inner ends and secured Zen of the l nited States, residing atChicago, to the ,nds of the arnniture, whereby rotation in the county ofCook and State of Illinois, 1 of the sleeves n and n, which producedbv 5have invented a new and useful lmprovepower a iplied to a pulley, E, onthe sleeve )1,

ment in Dynamo-Electric lilachines, of which rotates the armature D infront of the poles the following is a specification. N and Asimilararmature, .l), is supported My invention relates. to the class ofma within the armature 1) from loose sleeves! chines used fortransforming mechanical and 1, extending through the sleeves 21 and I0work into electricity. n around the shaft 13, from arms 7; and 7.

The object of myiniprovementis to provide projecting from the inner endsof the sleeves a machine of the class referred to having a toward theadjacent ends of the armature D, much greater generating capacity hanother to which the are secured, rotation of the dynamo-electric machinesof the same size, sleeves I and Z to actuate the armature con- I 5thereby affording a very compact machine nected with them being effectedthrough the capable of generating in a given timea much medium ofpulley, E, secured upon the larger quantity of electricity than othermasleeve Z between the pulley E and bearing 1''. chines of its size. Theother partsof the machineas the com- My invention consists in adynainc-electric mutator and the brushes 72 and their connec- 20 machinehaving two sets of magnets and movtions-are the same as in otherdynamo-elecable armature-s, one within the other; and it tric machines,and are not therefore herein further consists in details of constructionshown and described in detail. and combinations of parts. To actuate themachine, power isapplied to III-the drawings, Figure 1 is asectional thepulleys E and E to rotate them in the 25 plan view of my improvedmachine, the secsame or in opposite directions, either being tionalportion being taken where the broken e puall effectual, and through themthe ar- 75 line 1 1 is shown to extend in Fig. 2. Fig. 2 matures l) andl), wherebyelectricitw is prois a side elevation of the same, part1}secdueed by each set of generators and led off in tional, the sectionalportion being taken. where the usual manner for use.

30 the broken line 2 2 is shown to extend in Fig. 1. Auvol' the usualmeans-such as fansmav Ais the frame or supportingbase of the mabeprovided to counteract the heat developed chine, provided near oppositeends with bear-' by the rapidly-succeediu magnetizations and ings r andr for the ends of a stationary demagnetizationsof the armatures inmotion.

shaft, ll, which I prefer to make hollow. \Vhat I claim as new, anddesire to secure 35 C is a magnet, either of the permanent kind byLetters Patent, is

or an electro-magnet, as shown, the poles N 1. in a d vnamoelectricmachine, the comand S being on opposite sides of the shaft. bination oftwo sets of magnets and movable A sleeve, q, surrounds the shaft 13 andis staarmatures, one set within the other, substantionarvthereon betweenthe poles of the magtiall v as described.

40 not C, and carries radial arms p, rigidly sup- 2. In adynamo-electric machine, in combiporting the opposite poles, N and S, ofa nation with the frame A, a stationary shaft, magnet, C, which, as inthe case of the mag- 13, a magnet, C, having its poles on opposite net0, may be permanent, as shown, or an sides of the shaft, a magnet, C,secured on electro-magnet. the shaft between the poles of the magnet C,

45 D is a rotary armature comprising a holand movable armatures D andI), supported low cylinder of soft iron wound with insu from the shaft13 and actuated, respectively, lated wire and supported around the shaft13, in front of the poles of the magnets Cand t", adjacent to the polesof the magnet C, from substantially as described. loose sleeves n and non the shaft near its 3. In a dyilame-electric machine, inv combinationwith the frame A, a stationary shaft, B, a magnet, C, having its poleson opposite sides of the shaft, a magnet, O, secured on the shaftbetween the poles of the magnet C, and hollow cylindrical rotaryarmatures D and I), supported one within the other around the shaft andactuated, respectively, in front of the poles of the magnets G and 0,substantially as described.

a. In a dynamo-electric machine, in combination with the frame A, ashaft, 13, rigidly supported on the frame, a magnet, 0, having its poles011 opposite sides of the shaft, a magnet, 0, secured on the shaftbetween the poles of the magnet C, loose rotatory sleeves n and '71,near opposite ends of the shaft, carrying between them a hollowcylindrical armature, D, surrounding the shaft and magnet O andextending between the poles of the magnet C, and loose rotatory sleevesZ and Z, near opposite ends of the shaft, carrying between them a hollowcylindrical armature, D, inside the armature D, surrounding the magnetC, substantially as described.

5. In a dynamo electric machine, in combination with the frame A, ashaft, B, rigidly supported on the frame, a magnet, 0, having its poleson opposite sides of the shaft, amagnet, 0, secured on the shaft betweenthe poles of the magnet C, loose rotatory sleeves 'n and 11, nearopposite ends of the shaft, having arms m and m, carrying between them ahollow cylindrical armature, D, surrounding the shaft and magnet C andextending between the poles of the magnet C, and loose rotatory sleevesZ and Z, extending through the sleeves n and n 011 the shaft, and havingarms 7c 'and 7t, carrying between them a hollow cylindrical c rmature,D, inside the armature D, surrounding the magnet C, substantially asdescribed.

ISAAC T. DYER.

In presence of J. W. DYRENFORTH, CHAS. E. GAYLoRD.

